Thermometer



Juy M, w33. A, J, @No www? THERMOMETER Filed April 6, 1932 z-w Y 24 22 :inventor @RM1/wv @bho W das (Ittornegs Patented July 11, 1933 v UNiTED Vstares PATENT OFFICE C ARTHUR ,r. OTTO, 0E MILWAUKEE, WISCONSIN, kAssIeNoE "ro JOHNSON SERVICE COM- PANY, 0E MILWAUKEE, WISCONSIN, A CORPORATION. OF WISCONSIN THERMOMETER Application ined Api-ii 6, Y

This invention relates to thermometers, and particularly to what are known as insertion thermometers.

An insertion thermometer is one which has a. bulb portion inserted through a wall into a duct or chamber, and a graduated scale portion read from `that side ot' the wall remote from the bulb.

lt is at times necessary to mount such thermometers inv inaccessible positions, tor ex ample, on the side ot an air duct high above the door. The object o1 the present invention is to aii`ord a reasonable degree of adjustability,which will permit the thermometer to be tilted to an angle at which it may be read conveniently and without errors caused by parallax. Y

'A preferred form of the invention, as applied to an angular thermometer is illustrated in the accompanying drawing, in which,

Fig. 1 is a vertical section through the complete device on the line 1--1 of Fig.-2.

Fig. 2 is a fragmentary horizontal section on the line 2-2 of Fig. 1.

Fig. 3 is a ragmentarytront elevation.

In the drawing 6 represents a base intended to be mounted over `an aperture in arwall or partition (not shown) and to be held in place by fastenings passing through the holes 7.

At the center of the base 6 is an apertured forward projection, indicated generally at 8, and having parallel side walls 9 and top and bottom flanges 11. Fitting closelyand lilling the space between the side walls 9 is a boss 12.y formed at the lower end of the mountk 13. The boss 12 is termed with opposed arcuate portions 14 and is supported on trunnion screws 15 concentric with the arcuate portions 111. The arcuate portions 14 form a substantially tight seal with the flanges 11.

The screws 15 pass through washers 16 and holes in the walls 9 and are threaded into the boss 12. They may be tightened more or less,

P as desired, to hold the boss against tilting.

Threaded into the rear of boss 12 is an apertured tube 17, which projects to the rear and forms a continuation of a hole 18 through boss 12.

The mount 13 is recessed at the front and 1932. Serial No. 603,631.

in this recess is positioned agradua'ted' thermoinetric. scale 19.

An ordinaryfliquid thermometer having a tube 21V ot angular-'form and a bulb 22 is so mounted that a portion of the tube 21 overlies the scale 19 vand the remainder extends through hole 18 and tube 17, terminating in Y bulb 22 which is completely housed in the tube. y

A sleeve 23 o1 flexible packing material,

such as cotton wicking, 'cushions the tube 21,

and resists air ilowk through hole 18. Asimilarsleeve 2st supports and 'cushions the end ot' the tube near the bulb.

The end of the liquid column is indicated at 25 and is read against scale 19, as will be f obvious. l

The thermometer chosen tor illustration may` be tilted outward on a horizontal axis through anaiigle of 45 or so.' The angle oi adjustmentpermitted may be made greater if desired. lt is not necessary that the thermometer tube be bent at a'right angle, as shown, or at any angle. Obviously the in sei-tionv portion 17 and mount 13 might have various angular relations to which, of course,

the thermometer tube must conform.

What is claimed is 1. The combination of an apertured ture in said base; a hinged connection be- Y tween said thermometer and base on an axis transverse to the thermometer; and means moving with the thermometer and substantially filling thc aperture in the base to main` tain the aperture closed inthe various ad-Y justed positions ot the thermometer., 2. The combination optan apertured base;

a thermometer, having a rigid tube extending through the aperture in said base; a hinged connection between said thermometer and base on an axis transverse to the thermometer tube; and means carried by the base for Y mometer including a stem and bulb mounted in said mount with its stem in coaotive rela tion with said scale portion and its bulb housed in said insertion portion.

5. The combination of an apertured base.; a thermometer mount hinged thereto on an axis transverse to the mount, said mount including a scale portion, and an insertion portion which extends through the, aperture in said base and beyond the base; a thermometer including a stem and bulb mounted inV said mount with its stem incoactive relation with said scale portion and its bulb housed in said insertion portion ,and means enacting between said base and mount to maintain the aperture in the base closed in all positions of the mount. l

G. In a thermometer, the combination of an apertured base; a thermometermount hinged thereto on an axis transverse to the mount, said mount including a scale portion and aninsertion portion at an angle thereto, the hinged connection with the base being 4adjacent the junction of the two portions,

and the insertion portion extending through the aperture in the base; and a thermometer includingl a tube and bulb and having its tube bent at an angle, said thermometer being `mounted in said mount with its tube in coactive relation with said scale portion and its bulb housed 1n said insertion portion.

7. In a thermometer, the Combination of an' apertured base a thermometer mount hinged thereto on an axis transverse to the mount, said mount including a scale portion and an insertion portion at an angle thereto, the, hinged connection withthe base being adjacent the junction of the two portions, and the insertion portion extending through the aperture in 'thebaseg a thermometer including' a tube and bulb and having its tube bent at an angle, said thermometer being mounted in said mount with its tube in c0- aetive relation with said scale portion and its bulb housed insaid insertion portion; and means eoacting between said base and mount, to maintain the aperture in the base closed in all adjusted positions ot themount.

8. In a thermometer, the combination of an apertured base; a thermometer mount hinged thereto on an axis transverse to the mount, said mount including a scale portion and an insertion portion at an angle thereto, the hinged connection with the base being adjavcenti the junction of the two portions, and the insertion portion extending through the aperture in the base; a thermometer including a tube and bulb and having its tube bent at an angle, said thermometer being mounted in said mount with its tube in coactive relation with said scale portion and its bulb housed in said insertionportion; means coactingbe tween said base and mount, to maintain the aperture in the base closed in Vall adjusted positions of the mount and means for clamp. ing said mount to said base in adjusted positions. Y

In testimony whereof I have signed my name to this specification.

ARTHUR J. OTTO.

IUD 

